Sit 537 ABC 0.537.403 control box

SIT 537 ABC is a control box for automatic control and monitoring systems of gas units. It uses the principle of flame detection by ionization method and can control gas burners with direct or constant pilot ignition. This control board was designed for domestic gas boilers, including both natural and forced draft. It can be used with 840, 845, 848 SIGMA multifunctional valves via a special plastic container that attaches to the valve body. Advantages of this control board include compactness, built-in ignition transformer and ability for direct ignition of main or pilot burner (DBI/IP). There is also manual reset of long-term lockout and alarm indication of emergency shutdown on the housing or remotely. Characteristics of this control board include 2 ignition electrodes, 1 flame detection electrode and remote reset capability. It can be installed in gas boilers of various manufacturers, including Baxi, Beretta, Ariston and Protherm, both wall-mounted and floor-standing.